1  /* memmem variant information on S/390 version.
       2     Copyright (C) 2018-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #if defined USE_MULTIARCH && IS_IN (libc)		\
      20    && ! defined HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT
      21  # define HAVE_MEMMEM_IFUNC	1
      22  #else
      23  # define HAVE_MEMMEM_IFUNC	0
      24  #endif
      25  
      26  #ifdef HAVE_S390_VX_ASM_SUPPORT
      27  # define HAVE_MEMMEM_IFUNC_AND_VX_SUPPORT HAVE_MEMMEM_IFUNC
      28  #else
      29  # define HAVE_MEMMEM_IFUNC_AND_VX_SUPPORT 0
      30  #endif
      31  
      32  #ifdef HAVE_S390_ARCH13_ASM_SUPPORT
      33  # define HAVE_MEMMEM_IFUNC_AND_ARCH13_SUPPORT HAVE_MEMMEM_IFUNC
      34  #else
      35  # define HAVE_MEMMEM_IFUNC_AND_ARCH13_SUPPORT 0
      36  #endif
      37  
      38  #if defined HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT
      39  # define MEMMEM_DEFAULT		MEMMEM_ARCH13
      40  # define HAVE_MEMMEM_C		0
      41  # define HAVE_MEMMEM_Z13	1
      42  # define MEMMEM_Z13_ONLY_USED_AS_FALLBACK 1
      43  # define HAVE_MEMMEM_ARCH13	1
      44  #elif defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
      45  # define MEMMEM_DEFAULT		MEMMEM_Z13
      46  # define HAVE_MEMMEM_C		0
      47  # define HAVE_MEMMEM_Z13	1
      48  # define HAVE_MEMMEM_ARCH13	HAVE_MEMMEM_IFUNC_AND_ARCH13_SUPPORT
      49  #else
      50  # define MEMMEM_DEFAULT		MEMMEM_C
      51  # define HAVE_MEMMEM_C		1
      52  # define HAVE_MEMMEM_Z13	HAVE_MEMMEM_IFUNC_AND_VX_SUPPORT
      53  # define HAVE_MEMMEM_ARCH13	HAVE_MEMMEM_IFUNC_AND_ARCH13_SUPPORT
      54  #endif
      55  
      56  #ifndef MEMMEM_Z13_ONLY_USED_AS_FALLBACK
      57  # define MEMMEM_Z13_ONLY_USED_AS_FALLBACK 0
      58  #endif
      59  
      60  #if HAVE_MEMMEM_C
      61  # define MEMMEM_C		__memmem_c
      62  #else
      63  # define MEMMEM_C		NULL
      64  #endif
      65  
      66  #if HAVE_MEMMEM_Z13
      67  # define MEMMEM_Z13		__memmem_vx
      68  #else
      69  # define MEMMEM_Z13		NULL
      70  #endif
      71  
      72  #if HAVE_MEMMEM_ARCH13
      73  # define MEMMEM_ARCH13		__memmem_arch13
      74  #else
      75  # define MEMMEM_ARCH13		NULL
      76  #endif